This computer inspired by the model created by N.O.D.E is made on a raspberry pi zero. It is designed with the idea of programming, playing simple games, running some scripts away from home.

First of all, I'd like to thank N-O-D-E for the inspiration. Attached is the video that inspired me: https://youtu.be/SO4amBc0Tbw Because there were no files explaining how to make this device, I have created a version of my own, following the lines of N-O-D-E, but with some modifications. I have also created the appropriate stl to be able to print it in 3d. The dimensions of my devices are 127.3 mm x 115.5 mm x 16.5mm

Components:

• For the correct assembly it is necessary exactly the same component that I am going to put here:
• Raspberry pi zero-W
• TFT 3.5 LCD screen (https://es.aliexpress.com/item/32609751923.html)
• POWERBOOST 1000C (https://learn.adafruit.com/adafruit-powerboost-1000c-load-share-usb-charge-boost/overview)
• BATTERY 606090 (4000-4500mah) -BLUETOOTH KEYBOARD (https://es.aliexpress.com/item/4000083821318.html) -Fine cable 0.22m^2 (Have one meter just in case)
• USB female: https://es.aliexpress.com/item/32910073895.html -Screws m2 5-6mm long (x6)
• Nuts m2(x6) -SS-12F44(1P2T) switch: https://es.aliexpress.com/item/32954387518.html

Software

• I recommend configuring the raspberry before mounting. To do this you need to install :https://github.com/goodtft/LCD-show. The commands have to be put from the terminal of the raspberry pi. To see the screen, you need to write: sudo ./LCD35-show To retransmit by hdmi: cd LCD-show/ sudo ./LCD-hdmi
• I also recommend pairing the bluetooth keyboard before installing it, since it is difficult to press the sync button afterwards.

Prepare the assembly:

• It is necessary to desolder the GPIO of the 3.5 inch screen.
• You need to cut in half the JTS connector to fit (if you are going to use the port, be careful with the polarity).
• The keyboard must be dismantled. Also, the battery soldered to it must be removed.
• The cable that I used for the assembly of the circuits was 0.22mm^2. If it can be thinner, maybe better, but it was enough for me.

Notes of the assembly:

• The nuts are glued in the corresponding holes (5 in the back and 1 in the front). It is made to fit perfectly. The glue I used is Super-Glue. Pour it first to the surface of the printed piece, avoiding that the glue covers the hole.
• The pieces like the keyboard, I glued them with silicone. Once the cables were welded from the GPIO raspberry to the GPIO of the screen, I secured them with silicone to prevent them from being disconnected with inappropriate movements. The battery can be glued with double-sided tape, but not with silicone because high temperatures can damage it.

Electronics:

• The pins to be soldered between the raspberry plate and the LCD are 11 19 21 23 25 (GND); 2 (5V) 18 22 24 26. (same on both). Note that on the screen the square pin is pin 1 and the top pin 2.
• I leave the circuit diagram in an image. I hope it's clear enough If it looks bad, I uploaded a pdf
• To add the additional usb you must follow another scheme also added as a photograph (The raspberry is face down)

Suggestions:

• You have to be careful with the POWERBOOST 1000C because, when you charge it with a charger of more than 1A, it overheats a lot until it melts the PLA. To solve this problem, I recommend buying a more thermoresistant PLA or charging it with an intensity of 0.2-0.4 Amps (with a suitable charger or in places with low amperage as the usb of the PC). The option to charge it with less intensity will make it take a long time to charge it. In future versions I will consider the use of PowerBoost 500.